CN221168015U

CN221168015U - Outdoor fire hydrant

Info

Publication number: CN221168015U
Application number: CN202323271173.0U
Authority: CN
Inventors: 姚博; 史振元
Original assignee: Cangzhou Xingyuan Casting Industry Co ltd
Current assignee: Cangzhou Xingyuan Casting Industry Co ltd
Priority date: 2023-12-01
Filing date: 2023-12-01
Publication date: 2024-06-18
Anticipated expiration: 2033-12-01

Abstract

The utility model provides an outdoor fire hydrant, which comprises a lower hydrant body, an upper hydrant body, a clamp spring and a locking structure, wherein the lower hydrant body is buried underground, the top end of the lower hydrant body extends out of the ground, the bottom end of the upper hydrant body is inserted into an expanding cavity formed in the top end of the lower hydrant body, the clamp spring is detachably arranged on the upper hydrant body, and the locking structure is arranged on the top end of the lower hydrant body and is abutted with the clamp spring. The outdoor fire hydrant provided by the utility model can ensure that the upper hydrant body rotates freely relative to the lower hydrant body, the positions of the hydrant openings are ensured to be in the optimal positions, the clamp springs have the characteristic of deformation, and the locking force of the locking structure can be compensated along with the change of temperature difference so as to adapt to the expansion caused by heat and contraction caused by cold of the locking structure, the sealing effect of the upper hydrant body and the lower hydrant body is ensured, and the practicability is strong.

Description

Outdoor fire hydrant

Technical Field

The utility model belongs to the technical field of fire hydrants, and particularly relates to an outdoor fire hydrant.

Background

Fire hydrants are a fixed fire tool, which are provided everywhere in cities to provide fire extinguishing water for firefighters during rescue.

In the prior art, an outdoor hydrant generally comprises an upper hydrant body exposed on the ground and a lower hydrant body buried underground and connected with a water pipe. Outdoor fire hydrant is generally located outdoor each corner, and is not unified and clearly positioned, and the connection of the upper bolt body and the lower bolt body is usually flange butt joint, and the lower bolt body is required to be determined before the upper bolt body is installed in the installation process, but the flange connection structure is involved, the rotation angle of the upper bolt body relative to the lower bolt body is limited to a certain degree (for example, when six bolts are annularly arranged on a flange surface, the rotation angle of the upper bolt body relative to the lower bolt body is 60 degrees at the minimum), so that the bolt opening position on the individual upper bolt body cannot be located at an optimal position, shielding can exist, connection of a subsequent fire hose is inconvenient, and the practicability is poor. In addition, the structure connected through the flange has poor adaptability to expansion with heat and contraction with cold, can influence sealing effect and has poor practicability.

Disclosure of utility model

The embodiment of the utility model provides an outdoor fire hydrant, which aims to solve the problem that the existing outdoor fire hydrant is poor in practicability.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the outdoor fire hydrant comprises a lower hydrant body, an upper hydrant body, a clamp spring and a locking structure, wherein the lower hydrant body is buried underground, the top end of the lower hydrant body extends out of the ground, the bottom end of the upper hydrant body is inserted into an expanding cavity formed in the top end of the lower hydrant body, the clamp spring is detachably arranged on the upper hydrant body, and the locking structure is arranged at the top end of the lower hydrant body and is in butt joint with the clamp spring;

And the clamping spring is tensioned along with the locking structure towards the direction of the lower bolt body so as to lock the upper bolt body on the lower bolt body.

In one possible implementation, the top of the upper plug body is provided with a plurality of plug openings.

In one possible implementation manner, the locking structure comprises a flange plate fixedly connected with the top end of the lower bolt body, a flange ring sleeved on the upper bolt body, and a plurality of locking bolts for connecting the flange plate and the flange ring;

the bottom end of the flange ring is in limiting abutting connection with the top end of the clamp spring.

In one possible implementation, an annular groove for embedding the snap spring is arranged on the bottom side wall of the upper bolt body.

In one possible implementation, the top end of the snap spring is provided with an annular bevel portion.

In one possible implementation manner, an annular limiting table for the upper bolt body to abut is arranged at the bottom end of the flaring cavity.

In one possible implementation, the outdoor hydrant further comprises a sealing ring disposed between the annular stop block and the upper hydrant body.

In this implementation mode, go up the bolt body bottom and peg graft in the expansion mouth that bolt body top set up down to the mode through locking structure pulling jump ring locks the bolt body, can guarantee that the bolt body is the free rotation relatively lower bolt body, guarantees that the position of each bolt mouth is in the best position, and the jump ring has the characteristics of deformation, can produce certain deformation by oneself after the jump ring is pulled, and this deformation can compensate locking structure's locking force along with the difference in temperature change, with the expend with heat and contract with cold of adaptation locking structure, guarantees the sealed effect of going up bolt body and lower bolt body, and the practicality is strong.

Drawings

FIG. 1 is a schematic view of an outdoor hydrant according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the outdoor hydrant provided in the embodiment of FIG. 1 at A;

Reference numerals illustrate:

10. a lower bolt body; 11. a flared portion; 12. an annular limiting table; 20. an upper bolt body; 21. a bolt opening; 30. clamping springs; 31. a bevel portion; 40. a locking structure; 41. a flange plate; 42. a flange ring; 43. a locking bolt; 50. and (5) sealing the rubber ring.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 and 2 together, an outdoor hydrant according to the present utility model will now be described. The outdoor fire hydrant comprises a lower hydrant body 10 buried underground and the top end of the lower hydrant body extends out of the ground, an upper hydrant body 20, a clamp spring 30 and a locking structure 40, wherein the bottom end of the upper hydrant body 20 is inserted into an expanding cavity formed in the top end of the lower hydrant body 10, the clamp spring 30 is detachably arranged on the upper hydrant body 20, and the locking structure 40 is arranged at the top end of the lower hydrant body 10 and is in butt joint with the clamp spring 30.

The snap spring 30 is tightened with the locking structure 40 toward the lower latch 10 to lock the upper latch 20 to the lower latch 10.

Compared with the prior art, the outdoor fire hydrant provided by the embodiment is characterized in that the bottom end of the upper hydrant body 20 is inserted into the expanding cavity formed in the top end of the lower hydrant body 10, the upper hydrant body 20 is locked in a mode of pulling the snap spring 30 through the locking structure 40, the upper hydrant body 20 can be guaranteed to freely rotate relative to the lower hydrant body 10, the positions of the bolt openings 21 are guaranteed to be in the optimal positions, the snap spring 30 has the characteristic of deformation, when the snap spring 30 is pulled, certain deformation can be generated by the snap spring 30, the deformation can compensate the locking force of the locking structure along with temperature difference change, so that the expansion and contraction of the locking structure 40 are adapted, the sealing effect of the upper hydrant body 20 and the lower hydrant body 10 is guaranteed, and the practicability is strong.

In this embodiment, it should be explained that the top end of the lumen of the lower plug 10 is communicated with the flaring cavity, and the other end is communicated with the water delivery pipeline. And after the upper plug body 20 is inserted into the flaring cavity, the lumen of the upper plug body 20 is communicated with the lumen of the lower plug body 10.

In some embodiments, the upper plug 20 may have a structure as shown in fig. 1. Referring to fig. 1, a plurality of bolt openings 21 are provided at the top of the upper bolt body 20, and the bolt openings 21 can ensure the connection of the water suction pipes of the fire engine and the connection of the fire extinguishing belts. The plug opening 21 comprises two small-caliber plug openings 21 with an included angle of 180 degrees, mainly for ensuring the connection of the fire fighting water band, and a large-diameter plug opening 21, mainly for ensuring the connection of the fire truck water suction pipe.

In some embodiments, the locking structure 40 may be configured as shown in fig. 2. Referring to fig. 2, the locking structure 40 includes a flange 41 fixedly coupled to the top end of the lower key 10, a flange ring 42 sleeved on the upper key 20, and a plurality of locking bolts 43 coupled to the flange 41 and the flange ring 42.

Wherein, the bottom of flange ring 42 is spacing butt with the top of jump ring 30.

The flange ring 42 is connected with the flange plate 41 through each locking bolt 43, the clamp spring 30 is arranged between the flange ring 42 and the flange ring 42, the top end of the clamp spring 30 is in limiting butt with the bottom end of the flange ring 42, after each locking bolt 43 pulls the flange ring 42, the clamp spring 30 can be pulled downwards simultaneously, the upper bolt body 20 is further moved downwards, the clamp spring 30 can be deformed due to stress at the moment, the upper bolt body 20 can be ensured to be prestressed, the change of thermal expansion and cold contraction is guaranteed, the structure is simple, the connection is convenient, and the practicability is strong.

In some embodiments, the snap spring 30 may have a structure as shown in fig. 2. Referring to fig. 2, an annular groove for embedding the snap spring 30 is formed in the bottom side wall of the upper bolt body 20, and the annular groove can ensure limiting of the snap spring 30 and mounting of the snap spring 30.

In this embodiment, with respect to the bottom of the upper latch 20, it is understood that the annular groove is near the bottom end of the upper latch 20.

In some embodiments, the snap spring 30 may have a structure as shown in fig. 2. Referring to fig. 2, the top of the snap spring 30 is provided with an annular inclined surface portion 31, which can be understood that the top of the snap spring 30 is provided with a conical surface, because the outer diameter of the snap spring 30 needs to be larger than the inner diameter of the flange ring 42, after the annular inclined surface portion 31 is arranged, the bottom end of the flange ring 42 is abutted against the annular inclined surface portion 31, the structure can ensure the fixation of the upper plug 20, because the flange ring 42 and the upper plug 20 are in clearance fit, the structure can prevent the upper plug 20 from shaking, ensure the coaxiality of the upper plug 20 and the flaring portion 11, ensure the stability of the upper plug 20, and meanwhile, the thickness of the snap spring 30 is gradually reduced along the radial direction of the snap spring, can also ensure the deformation of the snap spring, and has a simple structure and strong practicability.

In some embodiments, the above-described oral cavity expanding structure may be as shown in fig. 2. Referring to fig. 2, an annular limiting table 12 for abutting the upper plug 20 is arranged at the bottom end of the oral cavity, and the annular limiting table 12 can ensure limiting of the upper plug 20, so as to ensure fixing of the upper plug 20.

In some embodiments, referring to fig. 1, the outdoor fire hydrant further includes a sealing ring, the sealing ring is disposed between the annular limiting platform 12 and the upper plug body 20, the sealing ring can effectively ensure sealing of the annular limiting platform 12 and the bottom end of the upper plug body 20, and meanwhile, the sealing ring is disposed in the expansion part 11, so that the sealing ring can be prevented from being directly exposed, and further, the service life of the sealing ring is guaranteed, and the sealing ring is simple in structure and strong in practicability.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The outdoor fire hydrant is characterized by comprising a lower hydrant body, an upper hydrant body, a clamp spring and a locking structure, wherein the lower hydrant body is buried underground, the top end of the lower hydrant body extends out of the ground, the bottom end of the upper hydrant body is inserted into an expanding cavity formed in the top end of the lower hydrant body, the clamp spring is detachably arranged on the upper hydrant body, and the locking structure is arranged at the top end of the lower hydrant body and is in butt joint with the clamp spring;

2. The outdoor hydrant according to claim 1, wherein the top of the upper hydrant body is provided with a plurality of hydrant openings.

3. The outdoor hydrant according to claim 1, wherein the locking structure comprises a flange plate fixedly connected with the top end of the lower hydrant body, a flange ring sleeved on the upper hydrant body, and a plurality of locking bolts connecting the flange plate and the flange ring;

4. The outdoor hydrant according to claim 3, wherein the bottom side wall of the upper hydrant body is provided with an annular groove for the snap spring to be embedded.

5. An outdoor hydrant according to claim 3 in which the top end of the jump ring is provided with an annular ramp portion.

6. The outdoor hydrant of claim 5, wherein the bottom end of the flaring cavity is provided with an annular limiting platform for the upper hydrant body to abut.

7. The outdoor hydrant of claim 6 further comprising a sealing ring disposed between the annular stop block and the upper hydrant body.